9.5.01 HP P4000 SAN Solution User Guide (AX696-96168, February 2012)

Stopping managers
Under normal circumstances, you stop a manager when you are removing a storage system from
a management group. You cannot stop the last manager in a management group. If you stop a
manager that compromises fault tolerance, the Best Practice details identify an issue with systems
that are running managers.
Deleting the management group is the only way to stop the last manager.
Implications of stopping managers
• Quorum of the storage systems may be decreased.
• Fewer copies of configuration data are maintained.
• Fault tolerance of the configuration data may be lost.
• Data integrity and availability may be compromised.
CAUTION: Stopping a manager can result in the loss of fault tolerance.
1. In the navigation window, select a management group, and log in.
2. Select the storage system for which you want to stop the manager.
3. Click Storage System Tasks on the Details tab, and select Stop Manager.
A confirmation message opens.
4. Click OK to confirm stopping the manager.
Editing a management group
Editing management group tasks include the following items:
• Changing local bandwidth priority.
• Editing Remote Bandwidth, done on the management group containing the remote snapshot.
(See the HP P4000 Remote Copy User Guide, in “Chapter 2, Using Remote Copy,” the section
about setting the remote bandwidth.)
Specialized editing tasks include:
• Disassociating management groups
• Setting Group Mode to normal
After making any changes to the management group, be sure to save the configuration data of
the edited management group. See “Saving management group configuration information”
(page 117).
Setting or changing the local bandwidth priority
After a management group has been created, edit the management group to change the local
bandwidth priority. This is the maximum rate per second that a manager devotes to non-application
processing, such as moving data. The default rate is 4 MB per second. You cannot set the range
below 0.25 MB/sec.
Local bandwidth priority settings
The bandwidth setting is in MB per second. Use Table 34 (page 117) as a guide for setting the
local bandwidth.
116 Working with management groups